https://web.archive.org/web/20030329131355/http://www.tt-bonn.de/1997h/h97d01.htm

Keine Beschreibung vorhanden.

Bundesarchiv - Findmittelinfo

https://web.archive.org/web/20090228072141/http://www.bundesarchiv.de/foxpublic/9CAAED460A062212000000005DFF73E1/findmittelinfo.

Keine Beschreibung vorhanden.

Bundesarchiv - Findmittelinfo

https://web.archive.org/web/20090228072141/http://www.bundesarchiv.de/foxpublic/9CAAED460A062212000000005DFF73E1/findmittelinfo.html

Keine Beschreibung vorhanden.